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Frozen Embryo Transfer Calendar
FET Cycle Protocol

The sample FET schedule and calendar below is for frozen embryo transfer of blastocyst stage embryos.

  • A frozen transfer cycle of day 3 embryos is similar, usually with 2 days less progesterone exposure prior to transfer.
  • This sample calendar shows the timing of the medications, monitoring of uterine lining development, and procedures.
  • Variations from this schedule are often done. Some IVF clinics give a shorter or longer duration of estrogen exposure before starting progesterone.

Frozen Embryo Transfer (FET) Calendar - Step by step

NOT USING BIRTH CONTROL PILLS

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
Start Lupron

Menstrual cycle day 21

2
Lupron

Menstrual cycle day 22 

3
Lupron

Menstrual cycle day 23 

4
Lupron

Menstrual cycle day 24 

5
Lupron

Menstrual cycle day 25 

6
Lupron

Menstrual cycle day 26 

7
Lupron

Menstrual cycle day 27

8
Lupron

Menstrual period starts

9
Lupron

Blood and ultrasound

10
Lupron

Start estrogen

11
Lupron

Stay on estrogen

12
Lupron

Stay on estrogen

13
Lupron

Stay on estrogen

14
Lupron

Stay on estrogen

15
Lupron

Stay on estrogen

16
Lupron

Stay on estrogen

17
Lupron

Stay on estrogen

18
Lupron

Stay on estrogen

19
Lupron

Stay on estrogen

20
Lupron

Stay on estrogen


Blood and ultrasound

21
Lupron

Stay on estrogen

22
Lupron

Stay on estrogen

23
Lupron

Stay on estrogen

24
Blood and ultrasound

Stop Lupron, stay on estrogen, start progesterone

25
Stay on estrogen
and progesterone
26
Stay on estrogen and progesterone

27
Stay on estrogen and progesterone

28
Stay on estrogen and progesterone

29
Stay on estrogen
and progesterone
30
Stay on estrogen and progesterone

Embryo transfer

Day 5 transfer of blastocyst embryos

31
Stay on estrogen and progesterone

Key to FET IVF calendar:

Lupron = subcutaneous injection of a medication called Lupron (GnRH agonist). This medication is taken once daily. It prevents the woman from ovulating during the FET cycle - which would throw off the timing of uterine receptivity.

Blood and ultrasound = blood test for estrogen and progesterone levels and transvaginal ultrasound to measure the endometrial thickness in the uterus.

Blood and ultrasound = blood test for estrogen and progesterone levels and transvaginal ultrasound to measure the endometrial thickness in the uterus.

Progesterone = vaginal cream or suppositories or intramuscular injection of a medication (female hormone) called progesterone. This drug helps to prepare a receptive lining for embryo implantation.

Embryo transfer procedure = procedure to put embryos in the uterus


Frozen embryo transfer success rates - what are the chances of frozen embryo transfer working?

  • This depends on several variables
    • Age of the woman
    • Quality of the frozen embryos
    • Stage of the frozen embryos (day they were frozen, usually day 3 or day 5-6)
    • The quality of the uterus and how it is prepared for the FET
    • The IVF lab's embryo freezing protocol and their expertise with cryopreservation

Cost of frozen embryo transfer

  • Our frozen embryo transfer cost is $4000 plus medications. This includes the entire FET cycle - all monitoring on the female, as well as thawing, culturing and transferring the embryos.